Map Of gypsum deposits in northern Ohio, black squares suggest the location of deposits, from "Geography of Ohio", 1923 Gypsum is Utilized in lots of programs: Gypsum are available in hydrothermal veins, which might be fractures in rocks stuffed with mineral-abundant fluids that originate from deep throughout the Earth's crust. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050